package com.xsd.vistor.shopDemo;

/**
 * @Description: 商品的抽象类
 * @Author: zhoufuzong
 * @Created: 2021-03-10 21:35:10
 * @Version: 1.1.0
 */

public abstract class ItemElement {

    abstract double accpet(ShoppingCartVistor vistor);
}
